Thaum lub qhov sib cais ntawm qhov chaw txhaj tshuaj pwm qhib, cov pwm txav tau thiab cov pwm ruaj khov raug cais tawm kom tshem tawm cov khoom yas, uas yog hu ua ib qho kev sib cais pwm, los yog lub phaj pwm. Nws yog ib qho yooj yim heev thiab yooj yim daim ntawv ntawm kev txhaj tshuaj pwm. Nws tuaj yeem tsim los ua ib kab noj hniav txhaj tshuaj pwm lossis ntau kab noj hniav pwm raws li kev xav tau. Nws yog ib qho kev txhaj tshuaj molding ntau heev.
Muab ob npaug rau qhov chaw txhaj tshuaj pwm Qhov muab ob npaug rau qhov chaw txhaj tshuaj pwm muaj ob qhov sib cais. Piv nrog rau ib feem ntawm qhov chaw txhaj tshuaj pwm, ob chav parting nto txhaj tshuaj pwm ntxiv ib feem ntawm qhov txav nruab nrab phaj (thiab Nws yog hu ua movable rooj vag phaj, uas yog muab nrog cov rooj vag, cov neeg khiav dej num thiab lwm qhov chaw thiab cov khoom uas xav tau rau cov pwm ruaj khov), yog li nws tseem hu ua peb-phaj (tsav platen, nruab nrab phaj, tsau platen) txhaj tshuaj pwm, uas feem ntau yog siv rau point pouring Rau ib kab noj hniav los yog ntau kab noj hniav txhaj pwm nrog inlet pub, thaum lub pwm qhib, lub phaj nruab nrab yog cais los ntawm cov qauv ruaj khov los ntawm ib qho kev ncua deb ntawm cov kab lus qhia ntawm cov pwm ruaj khov, kom cov txheej txheem pouring condensate tuaj yeem raug tshem tawm ntawm ob lub qauv. Qhov ob-parting nto txhaj tshuaj pwm muaj cov qauv complex, raug nqi siab, thiab ua haujlwm nyuaj. Nws feem ntau tsis yog siv rau molding ntawm cov khoom loj lossis cov khoom yas ntxiv.
